Daily briefing: First-ever ‘nuclear’ clocks put atomic clocks in the shade

Researchers have developed novel "nuclear clocks" that significantly outperform current atomic clocks in precision. These new timekeepers leverage the quantum properties of atomic nuclei, specifically the isomer state of Thorium-229, to measure time with unprecedented accuracy. One team, led by the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) in Germany, successfully measured the energy of the Thorium-229 isomer in 2022, a critical step towards building these clocks. The development promises advancements in fields requiring extreme timekeeping precision, such as fundamental physics research and navigation systems. Separately, an ocean-monitoring network, initially targeted for cuts by the Trump administration, has been saved due to significant public and scientific backlash. The network, which collects vital data on ocean health and climate change, faced defunding in 2020. However, widespread opposition and advocacy efforts led to its continued operation and even expansion. This resilience highlights the importance of public engagement in preserving scientific infrastructure. Additionally, the article addresses the growing threat climate change poses to cultural heritage sites worldwide. Rising sea levels, extreme weather events, and temperature fluctuations are accelerating the degradation of historical landmarks, archaeological sites, and cultural artifacts. Experts are calling for urgent conservation strategies and international cooperation to protect these invaluable remnants of human history from irreversible damage.